Anisotropic magnetomechanical effect in Tb0.3Dy0.7Fe2 alloy

In this paper, domain rotations in Tb_0.3Dy_0.7Fe₂ alloy under a compressive stress applied along various crystallographic axes alone have been investigated on the basis of 3D Stoner-Wohlfarth model by following the conventional free energy minimization procedure. The dependence of both the domain rotations and the strains caused by the compressive stress on the stress directions has been revealed. And it has been found that the anisotropic magnetomechanical effect arises from the dependence of the stress induced anisotropy on the stress direction. This study is very helpful for the better understanding of magnetic behavior of magnetostrictive materials under both stress and field.